Add simple example

CMakeLists.txt

@@ -29,6 +29,9 @@ set_target_properties(libxtrace
 )
 target_link_libraries(libxtrace Threads::Threads ${Protobuf_LIBRARIES} ${Boost_LIBRARIES} )
 
+add_executable (main src/main.cc )
+target_link_libraries(main libxtrace)
+
 # Introduce variables:
 # * CMAKE_INSTALL_LIBDIR
 # * CMAKE_INSTALL_BINDIR
@@ -43,4 +46,4 @@ install(DIRECTORY "include"
         PATTERN "*.h")
 
 
-install(TARGETS libxtrace DESTINATION "${CMAKE_INSTALL_LIBDIR}")
+install(TARGETS libxtrace DESTINATION "${CMAKE_INSTALL_LIBDIR}")
\ No newline at end of file

src/main.cc

+#include <iostream>
+#include <vector>
+#include "atomlayer.h"
+#include "pubsub.h"
+#include <sstream>
+#include "xtrace_baggage.h"
+#include "lexvarint.h"
+#include "baggageprotocol.h"
+#include "thread_local_baggage.h"
+#include "xtrace.h"
+
+void test_vector(std::vector<int> testv) {
+	testv[0] = 5;
+	std::cout << testv[0] << std::endl;
+}
+
+void printvector(std::vector<uint8_t> bytes) {
+	for (unsigned i = 0; i < bytes.size(); i++) {
+		std::cout << int(bytes[i]) << " ";
+	}
+	std::cout << std::endl;
+}
+
+int main(int argc, char *argv[]) {
+
+	XTrace::StartTrace("main.cc");
+
+	XTRACE("a");
+	XTRACE("b");
+	XTRACE("c");
+
+	Baggage branched_baggage = ThreadLocalBaggage::Branch();
+
+	std::thread branched_thread([&branched_baggage]() {
+		ThreadLocalBaggage::Set(branched_baggage);	
+		XTRACE("f");
+		XTRACE("g");
+		branched_baggage = ThreadLocalBaggage::Take();
+	});
+
+	XTRACE("d");
+	XTRACE("e");
+
+	branched_thread.join();
+	ThreadLocalBaggage::Join(branched_baggage);
+
+	XTRACE("h");
+
+	PubSub::shutdown();
+	PubSub::join();
+}